Bonanza (TV-1960) BITTER WATER (S1E29)

This Timeless TV Western starring Lorne Green, Pernell Roberts, Dan Blocker and Michael Landon, is one of the most popular shows in television history!
BITTER WATER: The Cartwrights object when a neighbor's son wants to sell his family's property to his future father-in-law Len Keith. The uncaring mine operator would ruin the region's water supply with pollution. Angry that the Cartwrights are cause problems, Keith plants diseased cattle in the Ponderosa herd.